Type-writing machine.



C. GIBBS Il SOKOLUV.

TYPE WRITING MACHINE.

APPLICATION FILED I ULY 2,1909.

Patented June 8, 1909.

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UNITED 4STATES. lPntrnivr OFFICE.

JHARLES GIBBS AND JACOB SOKOLOV, O1 NEW YORK, N. Y., ASSIGNORS 'lO UNDERWOOD TYIEWRITER COMPANY,'OF NEW YORK, N. ,YQA CORPORATION OF NEW JERSEY.`

TYPE-WRITING MACHINE.

1'0 (lv/,L whom it may concern:

Be it known that we,l CHARLES GlBns, a

citizen of the United States, residing in the. borough of Bronx, city, county, and State of` New York, and JAcon SoKoLov, a subject of the Czar of Russia, residing in the borough of Brooklyn, city of New York, county of Kings, and State of New York, have inventedcertain new and useful Improvements in Type- Vlfriting Machines,oi which the following is a specification.

This invention relates to means for releasing the platen of a typewriting machine, the control of the usual lineacev wheel, or of the usual spring-detent w ich engages said wheel. i

The objectof the invention is to provide simple, inexpensive, and compact means, readily applicable to existing types of Inachines, tor this purpose.

' According tothe present invention, there is connected to theplaten axle, to .rotate therewith, a clutching lever or vise having a jaw to bite upon the face of the line-space wheel and extendingoutwardly from said wheel to a finger-wheel, the latter movable axially to release saidlever, and also usable l l for rotatingthe platen. The lever is mounted in a head which 'is provided upon the endv of the platen axle, and both the line-space wheel and the finger-wheel are mounted upon said head, the whole making a simple' and compact structure, which maybe readily insorted in existing machines.

In the accom anying drawings, Figure 1 is apartsectiona 'plan of one end of the platen and platen frame, showing the present improvements. Figs. v2 and 3 are longitudi-l nal sections, Fig. 2 showing the line-space wheel clutched to the platen, and Figf 3 showing it'released. Fig. 4 is a sectional view of the vplaten-axle and head formed or secured thereon. Fig. 5 shows perspective views of the diil'erent parts of the apparatus.

The usual cylindrical platen 1 islixed by a screw 2 upon an axle 3, which may extend from end to end of va platen frame 4, or which may be .only long enough to serve as a gud,- geon or bearing for one end ofy the platen as at 3, Fig. 4.

Outside of the platen-frame is mounted a not'ched'line space wheel 5 with which engages a detent pressed by a spring 7" into tlie,notcl1es of the line-space wheel, to hold v Specification of Letters Patent.

r Application med July 2, 1908. Serial No. 441,547. I

Patented June 8, 1909.

i the same stationary. Upon the other end of the axle 3 is carried or formed a long cylindrical head- 8, which is hollow, to receive a lever 9, the latter having at its inner end a bent-up jaw 10 which acts as a vise to bite upon an inner face 11 of the line-space wheel 5. Said jaw 10 projects through an opening 12 in the head. lhe lever is normally caused by a compression-spring 13 to press to the left at Fig. 2 against the face 11, and to the right against the inside face 14 of the end 4of the head 8. Said spring 13 is confined in an enlargement or drum 15 formed on the Outer end of said head, bearing at one end against the inner periphery of said drum, and at the other end against the outer end confine the spring. Owing' t0 the length of the lever, the'bite of the jaw 1() upon the face 11 'of the line-space Wheel is very great; and it will also be understood that the end of a hub 17 formed upon said line-space wheel is caused to bear with the same pressure upon lthe face or side of the drum 15, the hub 17 being confined between the jaw 10 .and said drum. The friction between the endof the withthe friction between the jaw 10 and face 11, is sufficient to enable the line-space. wheel to control the platen. The jaw 10 may flit closely in the opening 12, so that there may be no shake or looseness of the platen relatively to theline-space wheel.

'A screw 18 may be threaded diagonally into the inner or right hand end of Athe head 8, to confine the lever; and said screw may bear against the lever near the ,'aw 10.

Upon the drum 15 fits loose y atelesco vsie casing or cap 19, having a longitudinal ot 20, to receive the head of a screw 21 threaded into the drum; whereby the cap is splincd to said drum. vProjecting inwardly from said cap or casing is a stem 22, at its inner end refer-ably fitting the cylindrical bore of the head S, and having between its ends a cam '23, .to engage a shoulder 24 formed upon the level' at its outer end, so that by drawing the y cap 19 outwardly, as at Fig. 3, the upper end l of the lever lis cammed upwardly or against 1! the tension of the spring 13, whereby the g pressure of the vise jaw 1() upon the linei space wheel is relieved, and the platen may rubevrotated freely while the line-space wheel l5 remains stationary'. Upon said cap 19is vof the lever; the latter having a pin 16 to` hub 17 and the bottom ofthe drum 15, takeny fitted a hand Wheel 2.5,.the two secured' to'- gether by screws i the carriage, whereby the cam 23 is caused position.

K simply inserting the plateii'a 'f claim:

tion with a platen, of an axle connected v bite upon the line-space wheeland fulerumed f and provided with a spring to cause it to bite In'operation, the hand Wheel 25 may be used to rotate the platen .and line-space' Wheel in the usual manner ;A but when it is the line-space wheel, the hand wheel 25 is irection of the letter-feeding movement of to act upon thelever or vise 9`to release the line-space Wheel; and while the parts are in this condition, the Wheel 25 may be turned to rotate the platen to tliexdesired point. After writing the desired Words lor characters, th hand wheel4 25 is pressedback to normal It -Will be seenthat by removing the usual screw or screws 2 at Vthe end or ends of the platen of an ordinary'ty ewriting machine, asv for instance thev Un erwood, the usual platen axle may be withdrawn together with the usual line-space Wheel, and the device seen at Fig. 2 may be substitutedtlierefnr by e 3 the platen and securing the same. The device may therefore either be supplied as an' ap lianceor the machine, or it'may be a plie to the machines during their origina manufacture. l 1l f' Variations may be resorted to Within the scope of the invention, and portions, of the improvements may be used without others.

Having thus described our invention, we

1. In a typewriting machine, theco'mbinathereto, a head upon the end'of said axle, a line-space Wheel, .the platen'being revoluble independently of thel line-space Wheel, `a lever formed at its inner end with a jawl to in the inner end of said head at said jaw, and extending toward the outer end of the head the line-space Wheel, a'fLnger-Wheel splined upon said head, and a stem projecting from said inger-wheel'into said Ahead and having a cam to cause said lever to-release the linespace wheel, i f

2. In a typewriting machine, the combination with a. laten, of an axle fixed thereto, a head upon thelendofsaid axle and having i at its outer Yend an enlargement, a line-space\ ,stem formed with a cam to engage said lever and force it to release the line-s pace wheel.

3.l In a typewriting machine,`the combination with a platen, of a line-space wheel loosely connected thereto, said platen and line-space'wheel carried upon a platen frame, a lever. connected to the platen and having a' jaw to bite the linepace wheel, said linespace wheel being outsi eof the platen frame and said leverv extending outwardly from said line-space wheel, a hand wheel to turn lthe platen, said hand-wheel containing said lever, and means for enabling saidhand wheel to operate said leverto release the platen from the line-space wheel. e

' 4. vIn a'type'writing machine, the combination With aplaten, of an' axle connected thereto, a head upon the end of said axle, a line-space wheel, the platen being revoluble independently'of lthe line-space wheel, a lever 4formed at its inner end with a jaw toprojeet through an opening in the head and bit-e upon the line-space wheel, said Alever ful crumed in the inner end of said head at said jaw, and extending toward the outer end of the head, and a finger-piece upon said head and having means to cause said lever to release the line-space wheel.

5. In a typewriting machine, the combination with a revoluble platen element, of a line-space wheel element, the platen being revoluble independently of the wheel, a lever mounted upon one of said wheel .and platen elements and having at its inner end a jaw to bite the other thereof, said .lever extending outwardly from said line-space wheel, and a lever-operator eariied upon the platen axle outsideol the line-space wheel to act upon the outer endof said lever to 'cause a releasing movement of-said lever.

y6. In a typewritin machine, the eoinbination with a revolub e platen element, of a line-space wheel element, the platen being revoluble independently of the Wheel, a lever mounted upon one of said wheel and platen elements'and having at its inner end a jaw to bite the other thereof, said lever extending outwardly from said line-space wheel, and a lever-operator carried upon the platen' axle outside of the line-space wheel to aet upon the outer end of said lever to cause a releasing movement of said lever; said lever-operator movable along the laten axle.

`7. In a typewriting niac ine, the combina- Wheel having `a hub to turn-loosely upon said head, a lever within said head and having at 5 its inner end a jaw projecting -throu h an orifice in said head to bite .upon sail linespace Wheel, the latter `bein confinedA bel tween said jaw. and' said en argement and g spring within said enlargement 'to bear u on said lever to cause the Jaw to bite the line. i

space wheel, and a linger-wheel spl'nied upon saidy enlargement and having interior.

tion with a revoluble platen element, of a liiie-spaee wheel element, the platen being revoluble independently oi the wheel, a lever mounted upon one of said wheel and platen elements and having a jaw to bite the other thereof, a hand wheel upon the platen, said hand wheel movable axially, and said lever extending within said hand wheel, and means within said hand wheel to engage said lever to release the platen.

8. In atypewriting machine, the .eoineinae "tion ofl a platen; a finger-wheel. connected thereto, a line-spacing wheel, means, including a jaw-lever, for connecting said .linespacing wheel to said finger wheel, and a reclprocating cam within said finger wheel for operating upon said lever to release said linespacing 4wheel from said finger wheel.

9. In a ty ewriting machine, thecombination with a p aten and a platen axle, of a linespace wheel, a clutching lever having a jaw to bite upon a face of the linesspace wheel, a ingei-wheel on said axle outside of said linespace wheel, said leverextending outwardly from said line-space Wheel tosaid iingcr wheel, and means forxenabling the-lingerwheel by an axial movement to release said lever; said lever mounted in a head provided upon the end of the platen axle and said linespace wheel also carried upon said head.-`

10. In a typewriting machine,` the combination with'a platen and a platen axle, 4ola line-space wheel, a clutching lever having a jaw to bite vupon'a face of 'the line-s acev wheel, a inger-wheel on said axle outsi( e of` said line-space wheel, said leverextending outwardly from said line-space-wheel to said finger-wheel, and 'means for enabling the inger-wheel by an axial movement to release said lever; said lever mounted in a head .provided upon the end ofthe platen axle and said head having an enlargement or drum,

the finger-.wheel being mounted'upon said enlargement.

11. In a typewriting machine, the combination with a platen, a platen frame, and a platen axle, of a line-space Wheel outside of the platen frame and provided with a detent, a long cylindrical hollow'head provided upon the end of the platen axle, a lever'within said head and having at its inner end a bent-up jaw which acts as a vise to bite upon an inner face of said linefspaee wheel, said jaw projecting through an opening in said head, a spring normally causing said jaw to bite the line-space wheel, and a hubupon said line-space wheel to be pressedV by said. jaw against an enlargement or drum formed upon the outer end of said head.

` 12. In a typewriting macliine,`tlie combinationwith a platen, a platen frame, and a platen axle, i a line-space wheel outside of the platen traine and provided with a detent,

a long cylindrical hollow head provided upon the end of the platen axle, a lever within said head and having at its inner end a bent-- closely in said opening, anda screw or support being provide'd'in saidliead to prevent a long cylindrical hollow head provided upon the lend of the platen axle, a lever within said headl and having .at its inner end a bent-up jaw Whichacts as a vise to bite upon an inner -face of said line-space Wheel, said jaw projecting through an opening in said head, a spring normally causing said jaw tobite the linespaee wheel, anda hub upon said line-l `space wheel to be pressed by said jaw against an venlargement or drum formed upon 'the outer end of said head; and a screw or sup--A port bearing against the lever near said jaw..

14. In a typewriting'machine, the combif` nation with.a platen, ay platen iframe, and a platen'axle, of a line-space wheel outside of the platen frame and provided with a detent, a long cylindrical hollow head provided upon the' end of the platen axle, a lever within said head and having at its innerend a'bent-up jaw which acts as a vise to bite upon an inner face of said line-space Wheel, said jaw projecting `through an opening in said head, a

vspring normally causing said jaw to .bite the luie-space wheel, and a hub upon said linespace Wheel to be pressed by said jaw against an enlargement or drum formed upon the outer en Y vcap fitting loosely uponfsaid ldrum and of said head; a telescopic casing or splined thereto, a stein projecting inwardly from said cap and having a cam to engage Said lever to release the same. y

15. In a typewriting machine, the combination with a platen, a platen fratrie, and a platen axle, of a line-space wheel outside of the platen frame and provided with a detent, a long cylindrical hollow head provided upon the end ofthe platen axle, a lever within said head and having at its inner end a bent-up jawvwliich acts as a vise to bite upon an inner face of said line-space wheel, said jaw projecting through an opening in said head, a spring normally causing said jaw to bite the line-space wheel, and a hub upon said linespace wheel to be pressed by said jaw against an enlargement 'or drum Vformed upon the outer end of said head;I a telescopic casing or ca i fitting loosely upon said drinn and splined thereto, a stem projecting inwardly from said cap and having' a cani to engage said lever to release the saine, and a hand wheel fitted upon said' cap.

'16. Ina typewriting machine, thc combination with a platen axle having at one end an enlargement, a line-space wlieel turning around the platen axle, ,and releasable means to clamp said line-space Wheel against said enlargement; a finger-wheel being splined release the line4s ace wheel; and said clampl largement and having an interior stem proing means= inclu 'ng a lever extending f'rom. the finger-wheel to the line-space Wheel, and provided'vvith a sup ort t'o enableit to thrust the line-space -Whee against the drum.

17. In atypewriting machine, the combination With a platen, a platen frame, and an axle for the platen, -of a head provided upon the end of'said axle and having an enlarge ment ordrumat its outer end, a line-spatie Wheel having a hub loosely mounted upon 'said head7 a detent for the line-space Wheel, a lever lying Within the head and havin' its end bent to form av jaw to bite a face o the. line-space Wheel, the latter'being clamped between said jaw and said enlargement, a screw threaded into said head to form a fulerum to bearagainst said lever close to said jaw, said lever extending outwardly from the line-space Wheel, a compression spring bearing at one end-against the outer end' of said lever, and at-the other end against the in'tey rior periphery of said enlargement -to :cause said' jaw to bitethe line-space Wheel, said l head having an opening through which said jaw protrudes, a easing splined upon said envided with acam to aetupen said lever against the tension of said spring and cause the lever to release thelime-space Wheel, and a finger-Wheel secured' illy on said easing to turn the platen. M 18. ln a typewritinglrllaehine, the combination with a platem a "p `aten frame, and an axle for the platen, of a riad provided upon the end of said axle andllaving an enlargement or drum at its out'ei-f, end, a line/space Wheel having a hub loosely mounted upon said head, a detent for the linefspace wheel,

a -lever lying within the head and having ite 'end bent to form a jaw tobite a face ery the line-space Wheel, the latter being clamped. between said jaw and said enlargement, said lever extending outwardly from the linespace Wheel, a spring for said lever, and a casing splined upon said enlargement and having an interior stem to cause the lever to release the line-space Wheel.

CHARLEs Grens. JACOB SKOLOV.

Witnesses:

JOHN QSEIFERT, CLARA RIPLEY. 

